Bicycle comparison

Specification	2020 Kona Blast	2018 Kona Blast
Overview
Model year	2020	2018
Brand	Kona	Kona
Model	Blast	Blast
Bicycle type	Mountain	Mountain
Archive ID	900002888	900003152
Colors	Gloss Dirty Cyan or Black w/ Dark Cyan & Faux Yellow Decals	Matt Charcoal & Black w/ Black & Orange Decals
Sizes	S; M; L; XL	XS (26"); S; M; L; XL
Frameset
Frame construction	Kona Race Light 6061 Aluminum Butted	Kona Race Light 6061 Aluminum Butted
Frame material	Aluminum	Aluminum
Fork	RockShox 30 Silver TK Solo Air 100mm	RockShox 30 Silver TK Solo Air 100mm
Rear shock	n/a	n/a
Drivetrain
Shifters	Shimano Deore	Shimano Altus
Front derailleur	n/a	Shimano Alivio
Rear derailleur	Shimano Deore	Shimano Deore
Crankset	FSA Alpha Drive 1x; Chainring: 28t	Shimano Alivio; Chainring: 22/30/40t
Bottom bracket	FSA 7420	Shimano ES300
Cassette	Shimano Deore 11-42t 10spd	Shimano HG200 11-34t 9spd
Chain	KMC X10	KMC X9
Pedals	Kona JS2	Kona JS2
Brakes
Brakes	Brake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT401 Hydraulic	Brake Calipers: Shimano Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano Hydraulic
Cockpit & contact points
Headset	FSA No.57B	FSA No.57B
Handlebar	Kona XC/BC Riser	Kona XC/BC Riser
Stem	Kona XC	Kona XC
Saddle	Kona XC	Kona XC
Seatpost	Kona Thumb 31.6mm	Kona Thumb 31.6mm
Wheels & tires
Hubs	(F) Formula 100x9mm (centerlock) / (R) Shimano 135x10mm (centerlock)	(F) Formula 100x9mm / (R) Shimano 135x10mm
Rims	WTB ST I27 TCS 2.0	WTB STP I25
Spokes	Stainless Black 14g	Sandvik Stainless Black 15g fr / 14g rr
Front tire	WTB Trail Boss 27.5x2.25"	Schwalbe Nobby Nic 27.5/26x2.25"
Rear tire	WTB Trail Boss 27.5x2.25"	Schwalbe Nobby Nic 27.5/26x2.25"
Wheel size	27.5"	26"

Specification

2020 Kona Blast

2018 Kona Blast

Overview

Model year

2020

2018

Brand

Kona

Model

Blast

Bicycle type

Mountain

Archive ID

900002888

900003152

Colors

Gloss Dirty Cyan or Black w/ Dark Cyan & Faux Yellow Decals

Matt Charcoal & Black w/ Black & Orange Decals

Sizes

S; M; L; XL

XS (26"); S; M; L; XL

Frameset

Frame construction

Kona Race Light 6061 Aluminum Butted

Frame material

Aluminum

Fork

RockShox 30 Silver TK Solo Air 100mm

Rear shock

n/a

Drivetrain

Shifters

Shimano Deore

Shimano Altus

Front derailleur

n/a

Shimano Alivio

Rear derailleur

Shimano Deore

Crankset

FSA Alpha Drive 1x; Chainring: 28t

Shimano Alivio; Chainring: 22/30/40t

Bottom bracket

FSA 7420

Shimano ES300

Cassette

Shimano Deore 11-42t 10spd

Shimano HG200 11-34t 9spd

Chain

KMC X10

KMC X9

Pedals

Kona JS2

Brakes

Brake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT401 Hydraulic

Brake Calipers: Shimano Hydraulic; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano Hydraulic

Cockpit & contact points

Headset

FSA No.57B

Handlebar

Kona XC/BC Riser

Stem

Kona XC

Saddle

Kona XC

Seatpost

Kona Thumb 31.6mm

Wheels & tires

Hubs

(F) Formula 100x9mm (centerlock) / (R) Shimano 135x10mm (centerlock)

(F) Formula 100x9mm / (R) Shimano 135x10mm

Rims

WTB ST I27 TCS 2.0

WTB STP I25

Spokes

Stainless Black 14g

Sandvik Stainless Black 15g fr / 14g rr

Front tire

WTB Trail Boss 27.5x2.25"

Schwalbe Nobby Nic 27.5/26x2.25"

Rear tire

WTB Trail Boss 27.5x2.25"

Schwalbe Nobby Nic 27.5/26x2.25"

Wheel size

27.5"

26"

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement	2020 Kona Blast	2018 Kona Blast
Selected size / position	M	M
Reach	440 mm	427 mm
Stack	599 mm	601 mm
Head-tube angle	68°	68.5°
Seat-tube angle	75°	74°
Seat tube	420 mm	420 mm
Head tube	115 mm	115 mm
Chainstay / rear center	435 mm	435 mm
Wheelbase	1139 mm	1121 mm
Bottom-bracket drop	50 mm	50 mm
Bottom-bracket height	304 mm	304 mm
Standover height	718 mm	725 mm
Fork offset / rake	42 mm	42 mm
Front center	709 mm	691 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 6, 2026.